RDIoT Demo

Air Quality Sensor Measurement RGB Matrix Output [P004]

https://www.youtube.com/watch?v=BxdZ1Tk4Mmw

https://www.youtube.com/watch?v=yhVOXsE28B4

 https://www.youtube.com/watch?v=vl9jQZMoH-o

*GitHub : https://github.com/rdiot/rdiot-p004.git

* Parts

- Arduino Mega

- Air Quality Sensor (MQ135) [S037]

- 32x64 RGB LED Matrix P4 (LM-P4-SMD-RGB-LED) [D025]

- SI7021 Humidity Sensor (GY-21) [S068]

- Photo Resistor Module (KY-018) [S002]

* Contents

- Key Code

#include <Adafruit_GFX.h>   // Core graphics library

#include <RGBmatrixPanel.h> // Hardware-specific library

#include <MQ135.h>

#include <Wire.h>

int pin = A5; // Air Quality Sensor

// LED Matrix 

#define OE   9

#define LAT 10

#define CLK 11

#define A   A0

#define B   A1

#define C   A2

#define D   A3

RGBmatrixPanel matrix(A, B, C, D, CLK, LAT, OE, false, 64);

MQ135 gasSensor = MQ135(pin);

#define RZERO 76.63

double rzero;

double result;

int i=0;

double rzero;

double result;

void setup() {
  matrix.begin(); // LED Matrix init
  matrix.drawPixel(0, 0, matrix.Color333(7, 7, 7));
  delay(500);

  matrix.fillRect(0, 0, 64, 32, matrix.Color333(0, 7, 0));
  delay(3000);
}

void loop() {

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  matrix.setCursor(1, 1);    // start at top left, with 8 pixel of spacin

  if (i==0) {
   rzero = gasSensor.getRZero(); // float
  }

  if (i>0) { 
   result = gasSensor.getRZero();
   rzero = (rzero + result)/2;
  }

  float co2_ppm = gasSensor.getPPM();

  matrix.println("rz:"+(String)rzero+" ");
  matrix.setCursor(1, 9);    // start at top left, with 8 pixel of spacing
  matrix.println("rs:"+(String)result+" ");
  matrix.setCursor(1, 16);    // start at top left, with 8 pixel of spacing
  matrix.println("D:"+(String)analogRead(pin)+" ");
  matrix.setCursor(1, 23);    // start at top left, with 8 pixel of spacing
  matrix.println("A:"+(String)co2_ppm+"ppm");

  i++;

  if(co2_ppm > 10)

  {

    matrix.drawRect(0, 0, 64, 32, matrix.Color333(0, 4, 7));

  }

  else

  {

  // matrix.drawRect(0, 0, 64, 32, matrix.Color333(0, 4, 7));

  }

  //cool down
  delay(1000);

}

NeoPixel Stick - 8 x WS2812 (5050RGB) [D009]

https://www.youtube.com/watch?v=55YDvXyeVjc

*GitHub : https://github.com/rdiot/rdiot-d009.git

* Specs

Make your own little LED strip arrangement with this stick of NeoPixel LEDs. We crammed 8 of the tiny 5050 (5mm x 5mm) smart RGB LEDs onto a PCB with mounting holes and a chainable design. Use only one microcontroller pin to control as many as you can chain together! Each LED is addressable as the driver chip is inside the LED. Each one has ~18mA constant current drive so the color will be very consistent even if the voltage varies, and no external choke resistors are required making the design slim. Power the whole thing with 5VDC (4-7V works) and you're ready to rock.

Product Url : https://www.adafruit.com/products/1426

* Contents

- Connect

GND ----- GND

4-7VDC ----- 5V

DIN ----- D6

- Library : https://github.com/adafruit/Adafruit_NeoPixel

- Key Code (Example : Standardtest.ino)

#include <Adafruit_NeoPixel.h>

#ifdef __AVR__

  #include <avr/power.h>

#endif

#define PIN 6

// Parameter 1 = number of pixels in strip

// Parameter 2 = Arduino pin number (most are valid)

// Parameter 3 = pixel type flags, add together as needed:

//   NEO_KHZ800  800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)

//   NEO_KHZ400  400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)

//   NEO_GRB     Pixels are wired for GRB bitstream (most NeoPixel products)

//   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)

Adafruit_NeoPixel strip = Adafruit_NeoPixel(60, PIN, NEO_GRB + NEO_KHZ800);

// IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across

// pixel power leads, add 300 - 500 Ohm resistor on first pixel's data input

// and minimize distance between Arduino and first pixel.  Avoid connecting

// on a live circuit...if you must, connect GND first.

void setup() {

  // This is for Trinket 5V 16MHz, you can remove these three lines if you are not using a Trinket

  #if defined (__AVR_ATtiny85__)

    if (F_CPU == 16000000) clock_prescale_set(clock_div_1);

  #endif

  // End of trinket special code

  strip.begin();

  strip.show(); // Initialize all pixels to 'off'

}

void loop() {

  // Some example procedures showing how to display to the pixels:

  colorWipe(strip.Color(255, 0, 0), 50); // Red

  colorWipe(strip.Color(0, 255, 0), 50); // Green

  colorWipe(strip.Color(0, 0, 255), 50); // Blue

  // Send a theater pixel chase in...

  theaterChase(strip.Color(127, 127, 127), 50); // White

  theaterChase(strip.Color(127, 0, 0), 50); // Red

  theaterChase(strip.Color(0, 0, 127), 50); // Blue

  rainbow(20);

  rainbowCycle(20);

  theaterChaseRainbow(50);

}

// Fill the dots one after the other with a color

void colorWipe(uint32_t c, uint8_t wait) {

  for(uint16_t i=0; i<strip.numPixels(); i++) {

    strip.setPixelColor(i, c);

    strip.show();

    delay(wait);

  }

}

void rainbow(uint8_t wait) {

  uint16_t i, j;

  for(j=0; j<256; j++) {

    for(i=0; i<strip.numPixels(); i++) {

      strip.setPixelColor(i, Wheel((i+j) & 255));

    }

    strip.show();

    delay(wait);

  }

}

// Slightly different, this makes the rainbow equally distributed throughout

void rainbowCycle(uint8_t wait) {

  uint16_t i, j;

  for(j=0; j<256*5; j++) { // 5 cycles of all colors on wheel

    for(i=0; i< strip.numPixels(); i++) {

      strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));

    }

    strip.show();

    delay(wait);

  }

}

//Theatre-style crawling lights.

void theaterChase(uint32_t c, uint8_t wait) {

  for (int j=0; j<10; j++) {  //do 10 cycles of chasing

    for (int q=0; q < 3; q++) {

      for (int i=0; i < strip.numPixels(); i=i+3) {

        strip.setPixelColor(i+q, c);    //turn every third pixel on

      }

      strip.show();

      delay(wait);

      for (int i=0; i < strip.numPixels(); i=i+3) {

        strip.setPixelColor(i+q, 0);        //turn every third pixel off

      }

    }

  }

}

//Theatre-style crawling lights with rainbow effect

void theaterChaseRainbow(uint8_t wait) {

  for (int j=0; j < 256; j++) {     // cycle all 256 colors in the wheel

    for (int q=0; q < 3; q++) {

      for (int i=0; i < strip.numPixels(); i=i+3) {

        strip.setPixelColor(i+q, Wheel( (i+j) % 255));    //turn every third pixel on

      }

      strip.show();

      delay(wait);

      for (int i=0; i < strip.numPixels(); i=i+3) {

        strip.setPixelColor(i+q, 0);        //turn every third pixel off

      }

    }

  }

}

// Input a value 0 to 255 to get a color value.

// The colours are a transition r - g - b - back to r.

uint32_t Wheel(byte WheelPos) {

  WheelPos = 255 - WheelPos;

  if(WheelPos < 85) {

    return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);

  }

  if(WheelPos < 170) {

    WheelPos -= 85;

    return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);

  }

  WheelPos -= 170;

  return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);

}

WS2812 16x5050 RGB LED Ring Lamp Light (SMD5050) [D065]

https://www.youtube.com/watch?v=eHAzBD8xm7E

*GitHub : https://github.com/rdiot/rdiot-d065.git

* Specs

Voltage:DC4-7V

Communication  interface:Single-wire communication

LED Chip:WS2812B

Inside Diameter :3.2 cm

Outside Diameter: 4.5 cm

* Contents

// DC4~7V (5V)

Adafruit_NeoPixel strip = Adafruit_NeoPixel(16, PIN, NEO_GRB + NEO_KHZ800);

- Connect

5V ----- 5V

DI ----- D6

GND ----- GND

- Library : https://github.com/adafruit/Adafruit_NeoPixel

- Test Example : standard

- Key Code

#include <Adafruit_NeoPixel.h>

#define PIN 6

// Parameter 1 = number of pixels in strip

// Parameter 2 = Arduino pin number (most are valid)

// Parameter 3 = pixel type flags, add together as needed:

//   NEO_KHZ800  800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)

//   NEO_KHZ400  400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)

//   NEO_GRB     Pixels are wired for GRB bitstream (most NeoPixel products)

//   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)

Adafruit_NeoPixel strip = Adafruit_NeoPixel(16, PIN, NEO_GRB + NEO_KHZ800);

// IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across

// pixel power leads, add 300 - 500 Ohm resistor on first pixel's data input

// and minimize distance between Arduino and first pixel.  Avoid connecting

// on a live circuit...if you must, connect GND first.

void setup() {

  strip.begin();

  strip.show(); // Initialize all pixels to 'off'

}

void loop() {

  // Some example procedures showing how to display to the pixels:

  colorWipe(strip.Color(255, 0, 0), 50); // Red

  colorWipe(strip.Color(0, 255, 0), 50); // Green

  colorWipe(strip.Color(0, 0, 255), 50); // Blue

  // Send a theater pixel chase in...

  theaterChase(strip.Color(127, 127, 127), 50); // White

  theaterChase(strip.Color(127,   0,   0), 50); // Red

  theaterChase(strip.Color(  0,   0, 127), 50); // Blue

  rainbow(20);

  rainbowCycle(20);

  theaterChaseRainbow(50);

}

// Fill the dots one after the other with a color

void colorWipe(uint32_t c, uint8_t wait) {

  for(uint16_t i=0; i<strip.numPixels(); i++) {

      strip.setPixelColor(i, c);

      strip.show();

      delay(wait);

  }

}

void rainbow(uint8_t wait) {

  uint16_t i, j;

  for(j=0; j<256; j++) {

    for(i=0; i<strip.numPixels(); i++) {

      strip.setPixelColor(i, Wheel((i+j) & 255));

    }

    strip.show();

    delay(wait);

  }

}

// Slightly different, this makes the rainbow equally distributed throughout

void rainbowCycle(uint8_t wait) {

  uint16_t i, j;

  for(j=0; j<256*5; j++) { // 5 cycles of all colors on wheel

    for(i=0; i< strip.numPixels(); i++) {

      strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));

    }

    strip.show();

    delay(wait);

  }

}

//Theatre-style crawling lights.

void theaterChase(uint32_t c, uint8_t wait) {

  for (int j=0; j<10; j++) {  //do 10 cycles of chasing

    for (int q=0; q < 3; q++) {

      for (int i=0; i < strip.numPixels(); i=i+3) {

        strip.setPixelColor(i+q, c);    //turn every third pixel on

      }

      strip.show();

      delay(wait);

      for (int i=0; i < strip.numPixels(); i=i+3) {

        strip.setPixelColor(i+q, 0);        //turn every third pixel off

      }

    }

  }

}

//Theatre-style crawling lights with rainbow effect

void theaterChaseRainbow(uint8_t wait) {

  for (int j=0; j < 256; j++) {     // cycle all 256 colors in the wheel

    for (int q=0; q < 3; q++) {

        for (int i=0; i < strip.numPixels(); i=i+3) {

          strip.setPixelColor(i+q, Wheel( (i+j) % 255));    //turn every third pixel on

        }

        strip.show();

        delay(wait);

        for (int i=0; i < strip.numPixels(); i=i+3) {

          strip.setPixelColor(i+q, 0);        //turn every third pixel off

        }

    }

  }

}

// Input a value 0 to 255 to get a color value.

// The colours are a transition r - g - b - back to r.

uint32_t Wheel(byte WheelPos) {

  if(WheelPos < 85) {

   return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);

  } else if(WheelPos < 170) {

   WheelPos -= 85;

   return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);

  } else {

   WheelPos -= 170;

   return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);

  }

}

32x64 RGB LED Matrix P4 (LM-P4-SMD-RGB-LED) Basic Test [D025]

https://www.youtube.com/watch?v=_ouIlwGYBXk

*GitHub : https://github.com/rdiot/rdiot-d025.git

* Specs

P4 smd 3in1 led display module:

Pixel Pitch   P4

Pixel Component  3in1

Pixel Density  62500dot/m⊃2;

Pixel configuration 1R1G1B

Module resolution(dots) 64x32 

Module dimension(mm) 256x128

Drive Mode 1/16

Brightness   2500cd/m2;

Viewing Angle  Horizontal:160°   Vertical:160°

Control Distance    100m

Refresh Frequency Rate 400Hz/S

Life Span   100,000hours

Display MTBF   10,000 Hours

Constant Working Time  72hours

Operation Temperature   -40°C~+70°C

Operation Humidity  10%-90%RH

Blind Pixels Rate  0.0001

Smooth   ±1mm

* Contents

- Refer Url : https://learn.adafruit.com/32x16-32x32-rgb-led-matrix/connecting-with-jumper-wires

- Refer Url : https://learn.adafruit.com/32x16-32x32-rgb-led-matrix/library

- Refer Url : https://learn.adafruit.com/32x16-32x32-rgb-led-matrix/how-the-matrix-works

- Library 1 : https://learn.adafruit.com/32x16-32x32-rgb-led-matrix/

- Library 2 : https://github.com/adafruit/Adafruit-GFX-Library 

- Connect

GND ----- 3EA GND

R1 ----- D24

G1 ----- D25

B1 ----- D26

R2 ----- D27

B2 ----- D28

G2 ----- D29

A   ----- A0

B   ----- A1

C   ----- A2

D   ----- A3

LAT ----- D10

CLK ----- D11

OE   ----- D9

- Key Code

#include <Adafruit_GFX.h>   // Core graphics library

#include <RGBmatrixPanel.h> // Hardware-specific library

#define OE   9

#define LAT 10

#define CLK 11

#define A   A0

#define B   A1

#define C   A2

#define D   A3

RGBmatrixPanel matrix(A, B, C, D, CLK, LAT, OE, false, 64);

void setup() {

  matrix.begin();

  // draw a pixel in solid white

  matrix.drawPixel(0, 0, matrix.Color333(7, 7, 7)); 

  delay(500);

  // fix the screen with green

  matrix.fillRect(0, 0, matrix.width(), matrix.height(), matrix.Color333(0, 7, 0));

  delay(500);

  // draw a box in yellow

  matrix.drawRect(0, 0, matrix.width(), matrix.height(), matrix.Color333(7, 7, 0));

  delay(500);

  // draw an 'X' in red

  matrix.drawLine(0, 0, matrix.width()-1, matrix.height()-1, matrix.Color333(7, 0, 0));

  matrix.drawLine(matrix.width()-1, 0, 0, matrix.height()-1, matrix.Color333(7, 0, 0));

  delay(500);

  // draw a blue circle

  matrix.drawCircle(10, 10, 10, matrix.Color333(0, 0, 7));

  delay(500);

  // fill a violet circle

  matrix.fillCircle(40, 21, 10, matrix.Color333(7, 0, 7));

  delay(500);

  // fill the screen with 'black'

  matrix.fillScreen(matrix.Color333(0, 0, 0));

  // draw some text!

  matrix.setTextSize(1);     // size 1 == 8 pixels high

  matrix.setTextWrap(false); // Don't wrap at end of line - will do ourselves

  matrix.setCursor(8, 0);    // start at top left, with 8 pixel of spacing

  uint8_t w = 0;

  char *str = "RD Kim  IoT Making";

  for (w=0; w<8; w++) {

    matrix.setTextColor(Wheel(w));

    matrix.print(str[w]);

  }

  matrix.setCursor(2, 8);    // next line

  for (w=8; w<18; w++) {

    matrix.setTextColor(Wheel(w));

    matrix.print(str[w]);

  }

  matrix.println();

  //matrix.setTextColor(matrix.Color333(4,4,4));

  //matrix.println("Industries");

  matrix.setTextColor(matrix.Color333(7,7,7));

  matrix.println("LED MATRIX!");

  // print each letter with a rainbow color

  matrix.setTextColor(matrix.Color333(7,0,0));

  matrix.print('3');

  matrix.setTextColor(matrix.Color333(7,4,0)); 

  matrix.print('2');

  matrix.setTextColor(matrix.Color333(7,7,0));

  matrix.print('x');

  matrix.setTextColor(matrix.Color333(4,7,0)); 

  matrix.print('6');

  matrix.setTextColor(matrix.Color333(0,7,0));  

  matrix.print('4');

  matrix.setCursor(34, 24);  

  matrix.setTextColor(matrix.Color333(0,7,7)); 

  matrix.print("*");

  matrix.setTextColor(matrix.Color333(0,4,7)); 

  matrix.print('R');

  matrix.setTextColor(matrix.Color333(0,0,7));

  matrix.print('G');

  matrix.setTextColor(matrix.Color333(4,0,7)); 

  matrix.print("B");

  matrix.setTextColor(matrix.Color333(7,0,4)); 

  matrix.println("*");

}